22030100 has 18 divisors (see below), whose sum is σ = 47805534. Its totient is φ = 8812000.

The previous prime is 22030091. The next prime is 22030121. The reversal of 22030100 is 103022.

It can be written as a sum of positive squares in 3 ways, for example, as 2775556 + 19254544 = 1666^2 + 4388^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110051 + ... + 110250.

It is an arithmetic number, because the mean of its divisors is an integer number (2655863).

Almost surely, 2^22030100 is an apocalyptic number.

22030100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22030100 is an abundant number, since it is smaller than the sum of its proper divisors (25775434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22030100 is a wasteful number, since it uses less digits than its factorization.

22030100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220315 (or 220308 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 22030100 is about 4693.6233338435. The cubic root of 22030100 is about 280.3316648054.

Adding to 22030100 its reverse (103022), we get a palindrome (22133122).

The spelling of 22030100 in words is "twenty-two million, thirty thousand, one hundred".